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Coolant Temperature Sensor

  1. Ensure ignition is off. Unplug connector from sensor. For sensor location, see Fig 1.
  2. Using ohmmeter, check resistance between sensor terminals. Replace sensor if resistance is not within specification at specified temperature. See Fig 2.
Fig 1: Locating TCCS Components
G91D18229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Coolant Temperature Sensor Specifications
G118894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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